
                  X-Bone Access Control List
		  ==========================
			Release 3.0 


The X-Bone User Access Control List (ACL) specifies the
privileges users have regarding X-Bone overlay operations
and application deployment. The following are the fields
for each ACL entires:
 
                                                                               
   o rule number: integers, specifies the order of rules to
     be checked against each user request.

   o name pattern: regular expression for pattern matching
     against the email addresses of the users.

   o overlay privilege: specifies the operations allowed,
     deploy (create, delete overlays) or guest (discover
     available nodes, query existing overlay status).

   o number of overlays: maximum number of overlays allowed
     by each user matching the rule.

   o application deployment privilege: the user identity
     (UID) allowed to execute application deployment scripts.

Example ACL entries in the X-Bone configuration file:

   acl 1   = yushunwa  deploy 100 root
   acl 3   = larse     deploy 100 vhost
   acl 5   = isi.edu   deploy  20 root
   acl 100 = \S+       guest   0 nobody
